In a world where terrifying monsters walk the earth, one heroic rooster is destined for greatness. When giant demons threaten the innocent, he's going to show them who's boss!

To save Morio from the demon controlling him, Chicken Little has found her courage and gone inside Morio's head! She confronts the creature that has attached itself to Morio's brain, but the parasite may get the better of Chicken Little as well! Meanwhile, Keiji, Keisuke, and Elizabeth battle a seemingly unstoppable devil and his master. When even Keiji goes down, Keisuke must awaken the Righteous Egg within his heart to achieve victory. But will this power be enough?